Intertwined electron-nuclear motion in frustrated double ionization in driven heteronuclear molecules

Abstract

We study frustrated double ionization in a strongly-driven heteronuclear molecule HeH${}^{+}$ and compare with H${}_2$. We compute the probability distribution of the sum of the final kinetic energies of the nuclei for strongly-driven HeH${}^{+}$. We find that this distribution has more than one peak for strongly-driven HeH${}^{+}$, a feature we do not find to be present for strongly-driven H${}_2$. Moreover, we compute the probability distribution of the n quantum number of frustrated double ionization. We find that this distribution has several peaks for strongly-driven HeH${}^{+}$, while the respective distribution has one main peak and a "shoulder" at lower n quantum numbers for strongly-driven H${}_2$. Surprisingly, we find this feature to be a clear signature of the intertwined electron-nuclear motion.

References in corpus (4)

• Photoionization of few electron systems with a hybrid Coupled Channels approach
• A toolkit for semiclassical computations for strongly-driven molecules: "frustrated" ionization of H${}_2$ driven by elliptical laser fields
• Frustrated double ionization in two-electron triatomic molecules
• Controlling electron-electron correlation in frustrated double ionization of molecules with orthogonally polarized two-color laser fields

Cited by in corpus (4)

• Heteronuclear Limit of Strong-Field Ionization: Fragmentation of HeH${}^{+}$ by Intense Ultrashort Laser Pulses
• Enhancing frustrated double ionisation with no electronic correlation in triatomic molecules using counter-rotating two-color circular laser fields
• Electron double-emission spectra for Helium atoms in intense 400 nm laser pulses
• Triple ionization and "frustrated" triple ionization in triatomic molecules driven by intense laser fields